1-Trichloromethyl-1,2,3,4-Tetrahydro-B-carboline (TaClo) is a dopaminergic and serotonergic neurotoxin. Liver enzymes produces TaClo via catalysis reaction of Tricloroethane with Tryptamine. TaClo destroys dopamine-producing cells and is structurally similar to the dopaminergic neurotoxin MPTP. As a result, TaClo is a molecule of importance in the study of Parkinson’s disease.